How to Block or Shield WiFi Relay Signal from Neighbor’s Directional Antenna?

Let me start from the beginning. I live at the "top", i.e. high, but higher than me, there is another neighbor (the guest is OK) but he wanted to have internet, or rather his rator. This is a normal phenomenon in our times. The problem is that he wanted to have this internet at a cheap cost and, what is worse, at the expense of mine and mine And here is the crux of the matter: for free internet, the guest allowed himself to put an internet relay on the roof (his roof is his business) but this relay is 20m away and is directed straight at my cottage and the antenna for my taste is directional, it looks like like a vertical white pipe with a height of about 80 cm, very similar to mobile telephony transmitters. I am an electronics engineer and I know that such waves in the long run and with greater power can be harmful to health. this signal with a different antenna (and if that's how?). Maybe it's a bit of a strange bob and I do not know if on this forum, maybe no one will answer because he will wind the whip on himself. Nevertheless, I am waiting for a response with a more and more painful g greetings GK.

in fact, I don't think so. I was walking around the city with a laptop in my backpack and running a program drawing WiFi network graphs and believe me, I live in a small city and I found a network for a quarter and quite a good range, besides, radio waves will also have a big problem with penetrating the interior of your home because for me, for example, he only picks them up on the balcony. So I don't think you should have any problems with that.

Hello
If the neighbor transmits with the power allowed and correct according to the law, then there is no fear for health - all cell phones and their "transmitters" transmit more power. However, I strongly advise against the fight against "cellular" because then a great headache will be provided . As for the neighbor's antenna, if there is a concern that it transmits with higher power than provided for by the standards, it should be reported to the appropriate institution.
PS. I also transmit - but with permissible force and no one complains of a headache
Regards

In my opinion, the carrier wave of such a transmitter has a high frequency and penetrates everything, including the walls of my house. And when it comes to power, I do not know, but why would there be such a large antenna? It is a relay, not only a receiver, and the standards are made for the companies that assemble them, in a word, who gives more, has better, and a worm like me and like me, let them boil. The distortion is still valid. Greetings and I expect some technical news, or some smart website on this topic that could reassure me (or make me angry !!).

I would ask URTiP for a check, just in case. They like to play such blocks :)

I am an amateur radio myself and if I talk to someone longer with 5W power, my head hurts, not to mention 50W.

Also let URTiP know that there is such a thing and let the guys check it.

And regarding the interference, you would have to put up a directional antenna directed at the guest, a transmitter with 2-3W and let some modulation unspecified.

Gentlemen ...
If one of you is an electronic musician, the other is a radio wave and you write what you write then ... you will make fun of it.

Such a large antenna that you are talking about is a sector, not a directional, so it radiates horizontally from 60st to 120st (it happens also 180).
I do not believe in a fairy tale about a sore head because this "transmitter" is probably an ordinary AP, which has a power from 64 to 100mW, so I definitely doubt that EIRP would be deadly.
And when it comes to the penetration of 2.4 GHz and 5, x GHz waves through the walls of the building ... if they would certainly penetrate all WISP (Wireless ISP) would be very happy. Concrete is the kill for these waves, not to mention reinforced ones.
Therefore, I propose to ignore the matter, because apart from the health effects of neighborly envy, there is no problem.
btw. a URTiP call may do this and the solution, but ... everyone with WLAN in the area hates you, because if URTiP arrives, it measures everything nearby and takes the equipment.
At the beginning I propose to dig up on 802.11a / b / g as well as on EIRP (quite nice pages are found) and reading should explain the matter.
oh yeah btw. Talking on mobile 30 minutes a day is certainly much more harmful than this antenna ...

This professional statement seems to have calmed me down a bit. Thank you very much. I asked this question because despite the fact that I am an electronics specialist, I do not know this area so well (rather very poorly). And I have not had a cell phone for 10 years and I hope that my life is not I will quickly force you to have it (by no means about these waves, but about a little peace during work). I consider the topic closed, I will give it peace of mind, until something suspicious happens with my neighbor. Regards and thanks for all replies. GK.